JPH0514969Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a joint structure for reinforced concrete columns.

[Conventional technology] Conventionally, in this type of reinforced concrete column, when connecting the columns on the upper and lower floors, it is difficult to join the large diameter column main bars between the columns using the reinforcing bar lap joint method. , In addition, it has not yet been implemented when using large diameter reinforcing bars.

Therefore, the current situation is that the connection of large-diameter column main reinforcements between such column bodies must necessarily rely on pressure welding, welding, or the like.

[Problems that the invention aims to solve] For this reason, in the past, when joining column main reinforcements between columns, each column main reinforcement had to be handled one by one, which not only resulted in very poor work efficiency but also There was a problem that the reinforcement could not be arranged in an orderly manner.

The present invention was developed under the above circumstances, and its purpose is to provide a joint structure for reinforced concrete columns that allows for efficient joint work and an orderly arrangement of reinforcement. It is in.

[Means for solving the problems] In order to solve the above problems, the present invention has the following features:
One of the main column reinforcements of the columns to be joined to each other is formed of a large-diameter reinforcing steel, and among the other main column reinforcements, at least two corner reinforcements are formed of a pair of small-diameter reinforcing bars, and the small-diameter The invention is characterized in that the large-diameter reinforcing bars are sandwiched and held by a pair of reinforcing bars to enable overlapping splicing.

[Function] That is, the present invention has the above-mentioned structure, so that among the columns that are joined to each other, one of the column bodies has a large diameter main reinforcement, and at least two corner reinforcements have a pair of small diameter reinforcements. Since the reinforcing bars are sandwiched and held by the main reinforcement of the other column, it is possible to easily overlap the main reinforcement of the columns at least at the corner of the column, and the overall In terms of the number of main reinforcements connected as a whole, work efficiency can be improved, and the reinforcements can be arranged symmetrically and in an orderly manner.

[Embodiment] Hereinafter, the present invention will be described in detail with reference to an illustrated embodiment.

Figure 1 schematically shows the reinforcement arrangement of a reinforced concrete column according to the present invention, which is concrete-cast across the upper and lower floors of a building. The column main reinforcement of the floor side column body 1 is the main column reinforcement 2. As shown in FIG. At the same time, hoop lines 3 are fixed around the circumference at appropriate intervals in the vertical direction.

In addition, in the figure, 4 is the column on the lower floor side, 5 is the main column reinforcement of this column on the lower floor side 4, and this main column reinforcement 5 has, for example, four normal thicknesses, as shown in FIG. It is formed by arranging reinforcing bars of the same diameter as the side bars 51 and arranging the corners thereof in a rectangular shape as a pair of relatively small diameter reinforcing bars 52, 52, and surrounding them in the vertical direction. A hoop muscle 6 is fixedly attached to the hoop muscle 6 at an appropriate interval.

That is, in the present invention, the main column reinforcements 2 of the column bodies 1 on the upper floor side that are joined to each other are made of large diameter reinforcing bars, and the main column reinforcements 5 at the corners of the column bodies 4 on the lower floor side are made of 2 steel bars.
Formed by a pair of small diameter reinforcing bars 52, 52, the fourth
As shown in the figure, the corner reinforcement 21 of the column 1 on the upper floor side
The main column reinforcements at the corners of the columns 4 on the lower floor side are sandwiched and held by a pair of small-diameter reinforcing bars 52, 52, thereby preventing the overlap of the main column reinforcements between the columns. This makes it possible to connect joints. In this case, the side reinforcements 22 of the column body 1 on the upper floor side and the side reinforcements 51 of the column body 4 on the lower floor side are overlapped and spliced with their centers shifted from each other.

After the main pillar reinforcements 2 and 5 of both the upper and lower pillar bodies 1 and 4 are spliced together in this way, the necessary formwork is placed and concrete is poured.

It should be noted that the present invention is not limited to the above-described embodiments in any way, and it goes without saying that various changes can be made without changing the gist of the present invention.

[Effects of the invention] As is clear from the above description, according to the invention, one of the main column reinforcements of the column bodies to be joined to each other is formed of a large-diameter reinforcing steel, and of the other main column reinforcement,
At least the corner reinforcements are formed of two pairs of small-diameter reinforcing bars, and the large-diameter reinforcing bars are inserted and held between the small-diameter reinforcing bars, so that at least the corners of the column are It is possible to easily overlap the main reinforcements of columns between columns, improve work efficiency in terms of the overall main reinforcement connection work for all the number of columns, and also ensure that the reinforcement is arranged symmetrically and in an orderly manner. It has the excellent effect of being able to do the following.

[Brief explanation of the drawing]

Fig. 1 is a schematic explanatory diagram showing one embodiment of the reinforced concrete column joint structure according to the present invention, Fig. 2 is an enlarged cross-sectional view of the main part of the upper floor column taken along the line - Fig. 1, and Fig. 3 is FIG. 1 is an enlarged cross-sectional view of the main part of the lower-story column body taken along the line 1--FIG. 1...Upper floor column body, 2...Column main reinforcement, 21...Corner reinforcement, 22...Side reinforcement, 3...Hoop reinforcement, 4...Lower floor column body, 5...Column main reinforcement, 51...Side muscle, 52,52
...Corner muscle.

Claims (1)

[Scope of utility model registration request] One of the main column reinforcements of the columns to be joined to each other is formed of a large-diameter reinforcing steel, and among the other main column reinforcements, at least two corner reinforcements are formed of a pair of small-diameter reinforcing bars, and the small-diameter A joint structure for reinforced concrete columns, characterized in that the large-diameter reinforcing bars are sandwiched and held between pairs of reinforcing bars to enable overlapping joints.